Rolls for rolling shovel-blanks



(No Model.) v `3 Sheets-Sheet 1.

E. A. BARNES. y

ROLL FORRGLLING SHOVEL BLANKS. No. 267,822. Patented Nov. 21 1882.

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(No Model.) s sheets-sheet 2.

E. A. BARNES.

ROLL POR ROLLING sHovEL BLANKS.

No. 267,822. Patented Nov. 21, 1.882.

WITNESSES-, INVEN-rm A MQW? 3 Sheets--Sheet 3.

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B A BARNES ROLL FOR ROLLING SHOVBL BLANKS.

No. 267,822. Patented Nov. 21, 1882.

UNITED STATES PATENT OFFICE.

ELMORE A. BARNES, OF PITTSBURG, PENNSYLVANIA.

ROLLS FOR ROLLING SHOVEL-BLANKS.

SPECIFICATION forming part of Letters Patent No. 267,822, dated November 21, 1882.

Application tiled May 15, 1882. (No model.)

To all whom it may concern:

Be it known that I, ELMORE A. BARNES, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented an 1mprovement in Rolls for Rolling Shovel-Blanks 5 and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, making part of this specification- Figure 1 being a top view of my improved rolls properly mounted and with the operative parts connected therewith; Fig. 2, an end view ot' the same; Fig. 3, a transverse vertical section thereof in a plane indicated by the line a: w, Fig. l Fig. 4, a transverse section of the rolls only, showing a different portion of the same from that shown in Fig. l or in Fig. 3.

Like letters designate corresponding parts in all of the figures.

My improved rolls are specially designed for use in carrying out the main part of my improved process of rolling shovel-blanks, for which I have made application for Letters Patent ot' the same date as this application but I do not restrict the present invention solely to that use, but claim it for any other use to which its principle is applicable.

The object of the invention is to construct a pair ot' reducing or shaping rolls between which the blank to be shaped may beinserted or fed in from the discharging or opening side of the rolls, instead of feeding in from the opposite, closing side thereof. By such a construction I ain enabled, with contnuously-revolvin g rolls, to pass a portion only of the shovel-blank between the rolls, leaving the remaining portion untouched for shaping between other rolls or not.

The rolls 'represented in the drawings, and the construction of y which I herein describe, are adapted to shaping the blades of shovelblanks formed from one piece of metal. It being required to give an additional thickness of metal over the socket part of the blade of the shovel, I produce this re-enforced portion by the rolls herein described without requiring the usual hammering of the same. The two rolls are situated so that their peripheries are nearly in contact, allowing just suflicient space between them to produce the general thickness of the shovel-blades. A Means for adjusting the distance between them is provided to allow for any desired variation in the thickness of the shovel-blades, and to admit ofpassing the blanks more than once between the rolls when it is desirable to reduce the thickness of the blanks by successive rollin gs.

Thelower roll, A,in the accompanying drawings is shown as asimple plain roll. The upper roll, B has a depression, a, of the proper shape and depth to giverthe additional thickness orre-enforcement required over the socket part of the shovel-blade by reducing the remaining part ofthe blade to its ultimate thinness. As the blank X is to be inserted between the rolls from the discharging side, as indicated in Fig. 3, the strap end 'w thereof, by which the blank is handled,pointing to that side, it is necessary to furnish a space between the rolls. .'Io enable this mode of insertion to be accomplished, I make a large notch or cutaway opeuing, b, in this upper roll, B., as shown in the drawings, wide and deep enough for thc `purpose, and of sufficient extent around the periphery of the roll to allow sufficient time to insert a blank properly while the rolls are revolving, say, one-third of the circumference of the roll, more or less. This is, in position. just in advance of the depression a, as the roll revolves in the direction shown by the arrows in Figs. Sand 4.' As seen in Fig. 3, the blank X has just been inserted and placed in such a position as to have the rolls act upon the upper end of the blade, next to the strap portion rst, and iinish at the lower end. In Fig. 4 I have shown therolls as somewhat further advanced and in the act of reducing the blanks. There might be a depression in the lower roll, A, similar to the depression c in the roll B, so as to throw a part ot' the shaping on both sides, but this is not necessary; anda part ofthe feeding-in space might be out in the lower roll,which also is unnecessary. By shaping only one roll, B, for the purpose I am able to make the other roll a simple plain one, as shown. moveaccurately in time with each other, and it is not necessary even to gear them together. I have, however, represented them as geared together by cog-wheels d j'.

Generally I pass the shovel-blade twice or more between the rolls, reducing partially thc tirst time and completing the reduction the second time. l have shown a-known means of Thenthe two rolls do not require to IOO adjusting the roll B toward the roll A, the screws C C,which press upon the top bearings, D D, of the roll B, having notched disks E E on their upper ends, into which two radiallyextended levers, Gr Gr, pivoted on the respective screw-heads, engage, as shown. The two levers are placed in parallel positions, and have a connecting bar or rod, g, so that as one turns the other turns equally in the same direction. One of the levers is 'extended to form a handle, h. By turning back the levers to the position shown by full lines in Fig. l, the rolls maybe properly separated for the first action on the blank. Then by shifting the levers to a position indicated by dotted linesin the same figure the rolls will be in position for the second action on the blank.

I have shown and described the construction of the rolls for reducing the shovel-blade. A similar construction, except as to the form of the depression where additional thickness is required, serves for reducing the strap part of the shovel-blank in the same way; and this construction is adapted to reducing other articles or blanks where it may be required or desired to act on a part thereof without passing the whole between the rolls. The rolls, having a continuous uniform revolving movement, require only the simplest means for their operation. The Work is also done with great facility and all practicable rapidity.

What I claim as iny invention, and desire to secure by Letters Patent, is-

A pair of continuously-revolving rolls, A B, for rolling and re-ent'orcing shovel-blanks, one roll being provided with a re-ent'orcin g depression7 a, and one of the rolls having a depression, b, in advance of the depression a, and of such depth and peripheral extent as to enable the blanks to be inserted between the rolls from the discharge side thereof while they are revolving, substantially as and for the purpose herein specified.

ELMORE A. BARNES. 

